Culvert and connection.



No. 897,416. 1 PATENTED SEPT. 1, 1908. v l J.-H. SGHLAFLY.

CULVNRT JNNN GQNNECTION.l

APPLICATION FILED APR. 23,1908. l

d f' Wm @um l lttomau i To dll whom it may concern:

unirse sfrnins PATENT ermee.

JULiUs n. scHLAFLY,

OF CANTON, OHIO, ASSIGNOR TO THE OANTONCULVERT COMPANY, OF CANTON, OHIO, A CORPORATION OF OHIO.

cULvER'r AND CoNNncrroN.

Specicgltion of Letters Patent.

Patented Sept. 1, 1908.

Be it known that I, JULIUs H. SoHLAFLY,a

ycitizen of the United States, residing at Oanton, in the .county of Stark and State of Ohio, have invented a new and useful Culvert and Connection, of which the following is a specification.

Inv the manufacture, handling, connection and placing of culverts or large i es to be used as drains, laqueducts or thel'lile, it has been found'practical as well as convenient` and economical to use sheet metal in the construction and to make the 'culvertsein sections so that they may -be more readily handled and transported and a culvert of an'y desired length constructed by connecting an appropriate number of said sections. The sheet instal from which the sections are made may be'corrugated or plain,but eiather case the means of connecting the sections to each other is of great importance and several such means h ave heretofore been suggested.

My invention relates to improvements in culverts` and connections, in which culvert sections are fastened together or united end to end by means `of curved bolts acting in conjunctionl with the peculiar conformation of structure hereinafter disclosed; -and lthe .ob'ects of my improvement are; first,to provi e a culvert 1n which the various sections may be easilyiand conveniently connected together; second, to afford means not only for fastening the sections, but also for draw-y ing the sections together in such way as to make a tight joint; third, to provide means of connecting as stated Without producing 'any projection on the inside of the culvert will be liable to form an obstacle for dead grass, leaves whic I the free passage of sticks, or other refuse or rubbish, such as a connection for sectional culverts, which will have few parts and in the use of which few and simple tools and slight mechanical skill are required. I attain these objects by the construction and arrangement of parts hereinafter disclosed and illustrated in the accompanying drawing, in whichj Figure 1 is a perspective view of two connected sections of culvert embodying my improvement. Fig. 2 is'alongitudinal sectional view of two connectedlsectionsp- Fig. 3 is a i is -liable te, be washed through ordinary road @tde-f l-tk-qj;v fourth, to provide detached sectional view? of that portion, of

the culvert sections forming the joint and illustrating in a larger scale the arrangement and operation of the boltf Fig. 4 is an end view through two connected sections of the culvert.

Similar numerals refer to similar parts throughout the several views.

As before state'fi'the sections may made of corrugated or plain sheet metal. -If they are. made of plain sheets it is necessary to form one vor two corrugations at the end of each section in order to make the connection herein' described, but the preferable method is to corrugatethe metal sheets for their full length and when the said sheetsare then bent into circular form and fastened in the* construction of the sectlons, annular corru-' gations are produced extending entirely around the sections as shown in the drawing.

This not only produces a stronger section, ,Y

but also makes it very convenlent if it is de:

tisired to out 0El a-portion of the section in orderft produce a culvert of a required length.y

In `the construction of the sections the corlrugations are solecated and arranged that at one endl, the section is completed at the point of great'estid'iameter l, while the other end ofthe section is completed at the point of least diameter 2. It will be understood that the compound curves of the c onvexand concave surfaces of the corrugations are so regular that the contracted end 2 of a section m I readily be introduced into the flaring en 1 of the next section and the external surface of the one section When pressed against the inner surface of the other section will produce a tight joint along the engaging surface as at 3, and it will be understood that the more tightly drawn into the end l, the better will be the `F'joint produced. Uponthe convex corrugation nearest the contracted end 2 of each section are located a plurality of holes 4, the usual number -of these. holes for culverts of ordinary size -being three or four, which are located at points equi-distant from each the end 2 is pressed or other about the circumference of the section and on the side of saidlconvex ccrrugation l located the holes 5 equieach other;

just described. ...The holes are located upon l1f,lr' "side o'lj the said convex corru ation away' from-the end l. as shown in the rawing. "t

, ln joining the sections the contracted 'end 2 of one section' is introduced into the' flared lend l of the -adjacent section and the twg-,sec-

tions rotated with reference to each other, until the holes 4 and 5 are brought opposite troducedy through the holes 4 and their 2 threadedends caused to project through the holes 5. The nuts 7 are then drawn up upon bdlt alsol ten' tfreduce its curvature and in the reduct n of its said curvature it pressesA tightly'against the end 2 and causes it to bind tightly against the concave portion 8 of the first corrugation of the adjacent section.

l When all-of the curved bolts have been 'properly drawn up a tight joint between the sections is produced, the edges of the ends 2 are pressed firmly in placethe surfaces of the contracted and flared ends are pressed tightly together, and a very strong joint or connection is produced. Because of the formation ofthe corrugations, and the well known additional strength thereby produced and 'because of the locationol the holes, and the arrangement of the curved bolt with reference to the corrugations, the sections are `not only tightly pressed or drawn together for the purpose of a tight joint, but the con-V nection is .one of great'strengthand a culvert composed of several sections, and of considerable length, thus lcoupled together will possess great rigidity and will successfully resist any ordinary force, which would tend to displace ordisoonnect the said sections. Furthermore it will be understood that by the use of the curved bolts it is unnecessary to enter the culvert or to reach inside of it for the purpose of applying this improved connection, for the bolts may readily be intro# duced through the hole 4, and the threaded end brought out through the hole 5 the work being. done entirely from the outside. In placing the culvert, it is advisable to turn the contracted ends 2 in the direction of the ow `of the water and the culvert and connection will be well adapted to be kept clear ofobstructions.

Having fully .described my invention, what s l claim as new and desire to secure by Letters Patent, is

, 1. The herein described culvert and connection comprising culvert sectionsv corrugated at the ends, one end of each section terminating at the point of greatest diameter, producing vaflared end-,and the other end terminating at the point of least diameter 65.

producing a contracted end, lholes arranged The curved bolts 6 are then ijnin the sides ci the first-and last full convex corrugation at each end 'of the sections, the

contracted -end of` one. section introduced into the .flared end of the other section, curved bolts extending through the V.said holes-inthe sides 'of the corrugations and the saidA bolts provided lwith nuts whereby the sections may be drawn togetherand a tight u joint produced between theflaring andthe contracted ends, substantially as specified.

' 2.A In a culvert and connection, culvertv sections each rovided wlth a flaring and a contracted en the external surface of said contracted end corresponding in contour with the internal surface of the flaring end', full convex corrugations adjacent to said ends, holes in the sidespf said full convex corrugations farthest froi'nithe, engaging endsv of the said sectlons, the ycontracted end'ol A flared end of the adjacentsection, curved 1 one section introduced into and vengaging the bolts through the holes in' said sections and nuts on the said bolts for the purpose of drawing the sections together, substantially as and for the purpose specified.

3. Ina culvert and connection, culvert sections each rovided with a flaring anda contracted enr, the external surface of said contracted end corresponding in contour with the internal surface of the flaring end,

'full convex ,corrugations adjacent tov said ends, holes inthe sides of said full convex corrugations farthest from the engaging ends.

of the said section's,'the contracted `end of one sectlon introduced into and engaging thc flared end ofv the adjacent section, curved bolts through the holes in the said sections, the saidboltsbearing against the contracted edge on the inside .orthe' joint, and nuts on the said bolts for the purpose' of drawing the sections together, and of pressing lthe said contracted end of vthe inner section against the flared end of the outer section, substantially as and for the urpose specified.

4. In a culvert and connection, the combination of circumferentially corrugated sections, each section terminating at one end at a point of greatest convex corrugation and at the other end at a point of greatest concave corrugation, the contracted end of one section located in the fiared end of the adjacent section and means for drawing the two sections together, substantially asand for the purposespecified.

5. In a culvert and connection, the combination of culvert sections each provided with a flared and acontracted end, a' full convex circumferential corrugation located` u on each end of each section adj ycent to the arf ing and vto the contracted ortions respectively, a .contracted `end of one section lo-l `cated within the flared end of the adjacent section, holes located in the sides of the said corrugations andA means located throughyg; .11j

said holes and in engagement with the sai 5 nation of culvert sections, each section pr` vided with a flared and a contracted end, the contracted end of one section adapted to enter the ilared end of an adjacent section, the

outer surface of the contracted end and the 10 inner surface ofthe lared end being adapted to closely engage each other and means for drawing the sections together longitudinally, whereby a tight joint may be formed bei' tween said engaging surfaces, substantially as specified. A In testimony that I claim the above, I

,have hereunto subscribed 'my nainehin the presence of tWo Witnesses. v

JULIUS H. SCHLAF LY.

Witnesses:

Cms. W. KRIEG,

A. D. MCQUEEN.- 

